German authorities identified the attacker that killed nine people and injured 27 others in Munich July 22 before killing himself. The police have identified the shooter as an 18-year-old man of Iranian descent, who was born and raised in Munich. Authorities have searched his apartment but have so far not found any connections with the Islamic State. The perpetrator had earlier sought help for mental health issues. This attack comes soon after a July 19 axe attack on a train in Wuerzburg. And it was the third attack in Europe in a week, following the July 15 attack in Nice. While the attackers, their methods and their motivations were starkly different in all three cases, these incidents will trouble the temporary political calm that has set in over the role of migrants in Germany. This will only lead to more problems for the government of Chancellor Angela Merkel....